On 1/11/07, Yuval Ronen <ronen_yuval@yahoo.com> wrote:

In the following code:

struct A { void func(); }

int main() { shared_ptr<A> a(new A); boost::bind(&A::func, a); }

the bind() call returns a function object which holds the shared_ptr by value (it's one of the shared owners). This is an important feature I'm using, because sometimes the functor is the last owner left standing, and I want to keep A alive until the functor's destructor (actually, I don't really like this design, but I'm talking about legacy code here). Replacing boost::bind with lambda::bind doesn't compile. Is this feature not supported by lambda::bind? If not supported now, is it planned to be supported in the future? Can I in the mean time implement this feature in my code with relative ease?

Thanks, Yuval

boost::bind 'knows about' shared_ptr, lambda::bind doesn't. Something like using namespace boost::lambda; bind(&A::func, bind(&shared_ptr<A>::get, a)); should work (I think - I've not tried it). Stuart Dootson